Lots of folks are giving up on Sorenson here and moving to Canopus ProCoder 2.x. I hear there is a lite version that is inexpensive on the Canopus site.
Many folks have been having field issues with Sorenson/Avid/ QT Ref files for some time. Since Sorenson 3.x I believe.
Don’t know if this still works but try this. In sorenson, even if the checkbox is not lit up, I believe the default is to do de-interlacing? As I recall, someone said you still need to manually set the checkbox to not de-interlace. Something like that anyway. This only works for me if I choose to manually export a QT Ref file and NOT use the Avid codec. Export a QT Ref and drag that into Sorenson 4.x, choose large DVD, etc.
Canopus, using the Mastering Quality settings gives me elementary streams of video and audio (seperate) and they drop nicely into Encore DVD 1.5.1.
Good Luck.
Sean McHenry
Deep Blue edit
https://www.DeepBlueedit.com